To find all the divisors of the number 3,473,606,721:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 3,473,606,721:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,473,606,721 = 3 × 13 × 89 × 673 × 1,487
3,473,606,721 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,473,606,721
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
3
prime factor =
13
composite factor = 3 × 13 =
39
prime factor =
89
composite factor = 3 × 89 =
267
prime factor =
673
composite factor = 13 × 89 =
1,157
prime factor =
1,487
composite factor = 3 × 673 =
2,019
composite factor = 3 × 13 × 89 =
3,471
composite factor = 3 × 1,487 =
4,461
composite factor = 13 × 673 =
8,749
composite factor = 13 × 1,487 =
19,331
composite factor = 3 × 13 × 673 =
26,247
composite factor = 3 × 13 × 1,487 =
57,993
This list continues below...
... This list continues from above
composite factor = 89 × 673 =
59,897
composite factor = 89 × 1,487 =
132,343
composite factor = 3 × 89 × 673 =
179,691
composite factor = 3 × 89 × 1,487 =
397,029
composite factor = 13 × 89 × 673 =
778,661
composite factor = 673 × 1,487 =
1,000,751
composite factor = 13 × 89 × 1,487 =
1,720,459
composite factor = 3 × 13 × 89 × 673 =
2,335,983
composite factor = 3 × 673 × 1,487 =
3,002,253
composite factor = 3 × 13 × 89 × 1,487 =
5,161,377
composite factor = 13 × 673 × 1,487 =
13,009,763
composite factor = 3 × 13 × 673 × 1,487 =
39,029,289
composite factor = 89 × 673 × 1,487 =
89,066,839
composite factor = 3 × 89 × 673 × 1,487 =
267,200,517
composite factor = 13 × 89 × 673 × 1,487 =
1,157,868,907
composite factor = 3 × 13 × 89 × 673 × 1,487 =
3,473,606,721
32 factors (divisors)
What times what is 3,473,606,721?
What number multiplied by what number equals 3,473,606,721?
All the combinations of any two natural numbers whose product equals 3,473,606,721.
1 × 3,473,606,721 = 3,473,606,721
3 × 1,157,868,907 = 3,473,606,721
13 × 267,200,517 = 3,473,606,721
39 × 89,066,839 = 3,473,606,721
89 × 39,029,289 = 3,473,606,721
267 × 13,009,763 = 3,473,606,721
673 × 5,161,377 = 3,473,606,721
1,157 × 3,002,253 = 3,473,606,721
1,487 × 2,335,983 = 3,473,606,721
2,019 × 1,720,459 = 3,473,606,721
3,471 × 1,000,751 = 3,473,606,721
4,461 × 778,661 = 3,473,606,721
8,749 × 397,029 = 3,473,606,721
19,331 × 179,691 = 3,473,606,721
26,247 × 132,343 = 3,473,606,721
57,993 × 59,897 = 3,473,606,721
16 unique multiplications The final answer:
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