Q: What are the prime factors of the number 55,243,770?

 A: 2, 3, 5, 997, 1847

Why are those the prime factors of the number 55,243,770?

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 55,243,770

55,243,770
Factor Arrows
227,621,885
Factor Arrows
39,207,295
Factor Arrows
51,841,459
Factor Arrows
9971,847

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, 997, 1847

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 997 x 1,847 = 55,243,770

This can also be written as 21 x 31 x 51 x 9971 x 1,8471 = 55,243,770

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


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