The answer you may think is nine because:
1x3
1x5
1x7
1x9
3x7
....... so on.
But you didn't think that
1x1
3x3
5x5
7x7
9x9
so the answer IS 14 oh and the answer below is also mine. (jus created a account)
Positive 3-digit numbers are any numbers between 100 and 999. They are not negative (no "-" sign in front) and are three digits.
Forming three three digit numbers that use the numbers 1-9 without repeating, the highest product possible is 611,721,516. This is formed from the numbers 941, 852, and 763.
The product of the ten one-digit numbers is 0.
To find the last but one digit in the product of the first 75 even natural numbers, we need to consider the units digit of each number. Since we are multiplying even numbers, the product will end in 0. Therefore, the last but one digit (tens digit) will depend on the multiplication of the tens digits of the numbers. The tens digit will be determined by the pattern of the tens digits of the even numbers being multiplied.
Two consecutive two digit numbers that when multiplied give the product of 812 are 28 and 29.
The only pair of positive single-digit numbers which give a product of 81 are 9 and 9.
Positive 3-digit numbers are any numbers between 100 and 999. They are not negative (no "-" sign in front) and are three digits.
Forming three three digit numbers that use the numbers 1-9 without repeating, the highest product possible is 611,721,516. This is formed from the numbers 941, 852, and 763.
The product of the ten one-digit numbers is 0.
The product of two 2-digit numbers cannot be a two-digit number because the smallest two-digit number is 10, and the smallest product of two 2-digit numbers (10 × 10) is 100. Since 100 is a three-digit number, any multiplication of two 2-digit numbers will yield a product that is at least 100 or more. Therefore, the product must always be three digits or greater.
There are 320 such numbers.
90
1. 0 because it has to be a divisible by 5 also it has to be divisible by 2.
18 positive integers and 36 integers (negative and positive)
90
The lowest positive 4-digit number is 1000
The last digit in the product of the first 20 odd natural numbers can be determined by looking at the pattern of the units digit in the multiplication of consecutive odd numbers. The units digit of the product of consecutive odd numbers alternates between 1 and 5. Since there are 10 odd numbers between 1 and 19, and 20 is also an odd number, the last digit in the product of the first 20 odd natural numbers is 5.