Q: What are the prime factors of the number 43,416,140?

 A: 2, 5, 19, 61, 1873

Why are those the prime factors of the number 43,416,140?

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 43,416,140

43,416,140
Factor Arrows
221,708,070
Factor Arrows
210,854,035
Factor Arrows
52,170,807
Factor Arrows
19114,253
Factor Arrows
611,873

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, 5, 19, 61, 1873

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 19 x 61 x 1,873 = 43,416,140

This can also be written as 22 x 51 x 191 x 611 x 1,8731 = 43,416,140

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


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