Q: What are the prime factors of the number 153,574,620?

 A: 2, 3, 5, 31, 82567

Why are those the prime factors of the number 153,574,620?

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 153,574,620

153,574,620
Factor Arrows
276,787,310
Factor Arrows
238,393,655
Factor Arrows
312,797,885
Factor Arrows
52,559,577
Factor Arrows
3182,567

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, 5, 31, 82567

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 31 x 82,567 = 153,574,620

This can also be written as 22 x 31 x 51 x 311 x 82,5671 = 153,574,620

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


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