To find all the divisors of the number 8,900,000,016:
- 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 8,900,000,016:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
8,900,000,016 = 24 × 3 × 3,583 × 51,749
8,900,000,016 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 8,900,000,016
- 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
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2
3 × 3 =
24
composite factor = 2
4 × 3 =
48
prime factor =
3,583
composite factor = 2 × 3,583 =
7,166
composite factor = 3 × 3,583 =
10,749
composite factor = 2
2 × 3,583 =
14,332
composite factor = 2 × 3 × 3,583 =
21,498
composite factor = 2
3 × 3,583 =
28,664
composite factor = 2
2 × 3 × 3,583 =
42,996
prime factor =
51,749
composite factor = 2
4 × 3,583 =
57,328
composite factor = 2
3 × 3 × 3,583 =
85,992
This list continues below...
... This list continues from above
composite factor = 2 × 51,749 =
103,498
composite factor = 3 × 51,749 =
155,247
composite factor = 2
4 × 3 × 3,583 =
171,984
composite factor = 2
2 × 51,749 =
206,996
composite factor = 2 × 3 × 51,749 =
310,494
composite factor = 2
3 × 51,749 =
413,992
composite factor = 2
2 × 3 × 51,749 =
620,988
composite factor = 2
4 × 51,749 =
827,984
composite factor = 2
3 × 3 × 51,749 =
1,241,976
composite factor = 2
4 × 3 × 51,749 =
2,483,952
composite factor = 3,583 × 51,749 =
185,416,667
composite factor = 2 × 3,583 × 51,749 =
370,833,334
composite factor = 3 × 3,583 × 51,749 =
556,250,001
composite factor = 2
2 × 3,583 × 51,749 =
741,666,668
composite factor = 2 × 3 × 3,583 × 51,749 =
1,112,500,002
composite factor = 2
3 × 3,583 × 51,749 =
1,483,333,336
composite factor = 2
2 × 3 × 3,583 × 51,749 =
2,225,000,004
composite factor = 2
4 × 3,583 × 51,749 =
2,966,666,672
composite factor = 2
3 × 3 × 3,583 × 51,749 =
4,450,000,008
composite factor = 2
4 × 3 × 3,583 × 51,749 =
8,900,000,016
40 factors (divisors)
What times what is 8,900,000,016?
What number multiplied by what number equals 8,900,000,016?
All the combinations of any two natural numbers whose product equals 8,900,000,016.
1 × 8,900,000,016 = 8,900,000,016
2 × 4,450,000,008 = 8,900,000,016
3 × 2,966,666,672 = 8,900,000,016
4 × 2,225,000,004 = 8,900,000,016
6 × 1,483,333,336 = 8,900,000,016
8 × 1,112,500,002 = 8,900,000,016
12 × 741,666,668 = 8,900,000,016
16 × 556,250,001 = 8,900,000,016
24 × 370,833,334 = 8,900,000,016
48 × 185,416,667 = 8,900,000,016
3,583 × 2,483,952 = 8,900,000,016
7,166 × 1,241,976 = 8,900,000,016
10,749 × 827,984 = 8,900,000,016
14,332 × 620,988 = 8,900,000,016
21,498 × 413,992 = 8,900,000,016
28,664 × 310,494 = 8,900,000,016
42,996 × 206,996 = 8,900,000,016
51,749 × 171,984 = 8,900,000,016
57,328 × 155,247 = 8,900,000,016
85,992 × 103,498 = 8,900,000,016
20 unique multiplications The final answer:
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