Q: What are the prime factors of the number 625,155,102?

 A: 2, 3, 11, 13, 242873

Why are those the prime factors of the number 625,155,102?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 625,155,102

625,155,102
Factor Arrows
2312,577,551
Factor Arrows
3104,192,517
Factor Arrows
334,730,839
Factor Arrows
113,157,349
Factor Arrows
13242,873

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 13, 242873

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 13 x 242,873 = 625,155,102

This can also be written as 21 x 32 x 111 x 131 x 242,8731 = 625,155,102

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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