To find all the divisors of the number 142,003,180:
- 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 142,003,180:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
142,003,180 = 22 × 5 × 112 × 58,679
142,003,180 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) × (1 + 1) × (2 + 1) × (1 + 1) = 3 × 2 × 3 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 142,003,180
- 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 =
5
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2
2 × 11 =
44
composite factor = 5 × 11 =
55
composite factor = 2 × 5 × 11 =
110
composite factor = 11
2 =
121
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2 × 11
2 =
242
composite factor = 2
2 × 11
2 =
484
composite factor = 5 × 11
2 =
605
composite factor = 2 × 5 × 11
2 =
1,210
composite factor = 2
2 × 5 × 11
2 =
2,420
This list continues below...
... This list continues from above
prime factor =
58,679
composite factor = 2 × 58,679 =
117,358
composite factor = 2
2 × 58,679 =
234,716
composite factor = 5 × 58,679 =
293,395
composite factor = 2 × 5 × 58,679 =
586,790
composite factor = 11 × 58,679 =
645,469
composite factor = 2
2 × 5 × 58,679 =
1,173,580
composite factor = 2 × 11 × 58,679 =
1,290,938
composite factor = 2
2 × 11 × 58,679 =
2,581,876
composite factor = 5 × 11 × 58,679 =
3,227,345
composite factor = 2 × 5 × 11 × 58,679 =
6,454,690
composite factor = 11
2 × 58,679 =
7,100,159
composite factor = 2
2 × 5 × 11 × 58,679 =
12,909,380
composite factor = 2 × 11
2 × 58,679 =
14,200,318
composite factor = 2
2 × 11
2 × 58,679 =
28,400,636
composite factor = 5 × 11
2 × 58,679 =
35,500,795
composite factor = 2 × 5 × 11
2 × 58,679 =
71,001,590
composite factor = 2
2 × 5 × 11
2 × 58,679 =
142,003,180
36 factors (divisors)
What times what is 142,003,180?
What number multiplied by what number equals 142,003,180?
All the combinations of any two natural numbers whose product equals 142,003,180.
1 × 142,003,180 = 142,003,180
2 × 71,001,590 = 142,003,180
4 × 35,500,795 = 142,003,180
5 × 28,400,636 = 142,003,180
10 × 14,200,318 = 142,003,180
11 × 12,909,380 = 142,003,180
20 × 7,100,159 = 142,003,180
22 × 6,454,690 = 142,003,180
44 × 3,227,345 = 142,003,180
55 × 2,581,876 = 142,003,180
110 × 1,290,938 = 142,003,180
121 × 1,173,580 = 142,003,180
220 × 645,469 = 142,003,180
242 × 586,790 = 142,003,180
484 × 293,395 = 142,003,180
605 × 234,716 = 142,003,180
1,210 × 117,358 = 142,003,180
2,420 × 58,679 = 142,003,180
18 unique multiplications The final answer:
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