To find all the divisors of the number 362,811,724:
- 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 362,811,724:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
362,811,724 = 22 × 112 × 31 × 24,181
362,811,724 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 = (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 362,811,724
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- 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 =
2
composite factor = 2
2 =
4
prime factor =
11
composite factor = 2 × 11 =
22
prime factor =
31
composite factor = 2
2 × 11 =
44
composite factor = 2 × 31 =
62
composite factor = 11
2 =
121
composite factor = 2
2 × 31 =
124
composite factor = 2 × 11
2 =
242
composite factor = 11 × 31 =
341
composite factor = 2
2 × 11
2 =
484
composite factor = 2 × 11 × 31 =
682
composite factor = 2
2 × 11 × 31 =
1,364
composite factor = 11
2 × 31 =
3,751
composite factor = 2 × 11
2 × 31 =
7,502
composite factor = 2
2 × 11
2 × 31 =
15,004
This list continues below...
... This list continues from above
prime factor =
24,181
composite factor = 2 × 24,181 =
48,362
composite factor = 2
2 × 24,181 =
96,724
composite factor = 11 × 24,181 =
265,991
composite factor = 2 × 11 × 24,181 =
531,982
composite factor = 31 × 24,181 =
749,611
composite factor = 2
2 × 11 × 24,181 =
1,063,964
composite factor = 2 × 31 × 24,181 =
1,499,222
composite factor = 11
2 × 24,181 =
2,925,901
composite factor = 2
2 × 31 × 24,181 =
2,998,444
composite factor = 2 × 11
2 × 24,181 =
5,851,802
composite factor = 11 × 31 × 24,181 =
8,245,721
composite factor = 2
2 × 11
2 × 24,181 =
11,703,604
composite factor = 2 × 11 × 31 × 24,181 =
16,491,442
composite factor = 2
2 × 11 × 31 × 24,181 =
32,982,884
composite factor = 11
2 × 31 × 24,181 =
90,702,931
composite factor = 2 × 11
2 × 31 × 24,181 =
181,405,862
composite factor = 2
2 × 11
2 × 31 × 24,181 =
362,811,724
36 factors (divisors)
What times what is 362,811,724?
What number multiplied by what number equals 362,811,724?
All the combinations of any two natural numbers whose product equals 362,811,724.
1 × 362,811,724 = 362,811,724
2 × 181,405,862 = 362,811,724
4 × 90,702,931 = 362,811,724
11 × 32,982,884 = 362,811,724
22 × 16,491,442 = 362,811,724
31 × 11,703,604 = 362,811,724
44 × 8,245,721 = 362,811,724
62 × 5,851,802 = 362,811,724
121 × 2,998,444 = 362,811,724
124 × 2,925,901 = 362,811,724
242 × 1,499,222 = 362,811,724
341 × 1,063,964 = 362,811,724
484 × 749,611 = 362,811,724
682 × 531,982 = 362,811,724
1,364 × 265,991 = 362,811,724
3,751 × 96,724 = 362,811,724
7,502 × 48,362 = 362,811,724
15,004 × 24,181 = 362,811,724
18 unique multiplications The final answer:
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