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Prime Factorization Calculator

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Prime Factorization Reference Table

Number	Prime Factorization	All Factors

About the Prime Factors Calculator

Common Use Cases

Breaking numbers into prime components for maths
Cryptography and number theory study
Finding the LCM or GCF of two numbers
Primary maths curriculum — understanding prime numbers

Latest Results

Prime factors of 2 = 2 Prime factors of 3 = 3 Prime factors of 4 = 2 × 2 Prime factors of 5 = 5 Prime factors of 6 = 2 × 3 Prime factors of 7 = 7 Prime factors of 8 = 2 × 2 × 2 Prime factors of 9 = 3 × 3 Prime factors of 10 = 2 × 5 Prime factors of 12 = 2 × 2 × 3 Prime factors of 14 = 2 × 7 Prime factors of 15 = 3 × 5 Prime factors of 16 = 2 × 2 × 2 × 2 Prime factors of 18 = 2 × 3 × 3 Prime factors of 20 = 2 × 2 × 5 Prime factors of 21 = 3 × 7 Prime factors of 22 = 2 × 11 Prime factors of 24 = 2 × 2 × 2 × 3 Prime factors of 25 = 5 × 5 Prime factors of 27 = 3 × 3 × 3 Prime factors of 28 = 2 × 2 × 7 Prime factors of 30 = 2 × 3 × 5 Prime factors of 32 = 2 × 2 × 2 × 2 × 2 Prime factors of 36 = 2 × 2 × 3 × 3 Prime factors of 40 = 2 × 2 × 2 × 5 Prime factors of 42 = 2 × 3 × 7 Prime factors of 44 = 2 × 2 × 11 Prime factors of 45 = 3 × 3 × 5 Prime factors of 48 = 2 × 2 × 2 × 2 × 3 Prime factors of 50 = 2 × 5 × 5 Prime factors of 54 = 2 × 3 × 3 × 3 Prime factors of 56 = 2 × 2 × 2 × 7 Prime factors of 60 = 2 × 2 × 3 × 5 Prime factors of 63 = 3 × 3 × 7 Prime factors of 64 = 2 × 2 × 2 × 2 × 2 × 2 Prime factors of 70 = 2 × 5 × 7 Prime factors of 72 = 2 × 2 × 2 × 3 × 3 Prime factors of 75 = 3 × 5 × 5 Prime factors of 80 = 2 × 2 × 2 × 2 × 5 Prime factors of 84 = 2 × 2 × 3 × 7 Prime factors of 90 = 2 × 3 × 3 × 5 Prime factors of 96 = 2 × 2 × 2 × 2 × 2 × 3 Prime factors of 100 = 2 × 2 × 5 × 5 Prime factors of 108 = 2 × 2 × 3 × 3 × 3 Prime factors of 120 = 2 × 2 × 2 × 3 × 5 Prime factors of 125 = 5 × 5 × 5 Prime factors of 128 = 2 × 2 × 2 × 2 × 2 × 2 × 2 Prime factors of 144 = 2 × 2 × 2 × 2 × 3 × 3 Prime factors of 150 = 2 × 3 × 5 × 5 Prime factors of 180 = 2 × 2 × 3 × 3 × 5 Prime factors of 192 = 2 × 2 × 2 × 2 × 2 × 2 × 3 Prime factors of 200 = 2 × 2 × 2 × 5 × 5 Prime factors of 216 = 2 × 2 × 2 × 3 × 3 × 3 Prime factors of 224 = 2 × 2 × 2 × 2 × 2 × 7 Prime factors of 240 = 2 × 2 × 2 × 2 × 3 × 5 Prime factors of 250 = 2 × 5 × 5 × 5 Prime factors of 256 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 Prime factors of 288 = 2 × 2 × 2 × 2 × 2 × 3 × 3 Prime factors of 300 = 2 × 2 × 3 × 5 × 5