364
-57The first two numbers in the series has a difference of 89. The next two numbers (209, 129) has a difference of 80. The next two (129,58) has a difference of 71. As you can see the differences change by 9, so the next two numbers in the series (58, -4) has a difference of 62. Following this pattern, the next two numbers in the series will have a difference of 53. So the next number in this series will be (-4-53 = -57).
612 - 602 = 121
11 x 11 = 121 121 x 1 = 121
There are no two prime numbers that equal 121. 121 is not a prime number itself, but is a product of 11*11.
The simplest answer for two numbers is 1 and 121. The most popular would be 11x11 however.
112 = 121 and 122 = 144.
-57The first two numbers in the series has a difference of 89. The next two numbers (209, 129) has a difference of 80. The next two (129,58) has a difference of 71. As you can see the differences change by 9, so the next two numbers in the series (58, -4) has a difference of 62. Following this pattern, the next two numbers in the series will have a difference of 53. So the next number in this series will be (-4-53 = -57).
The sum of the previous two numbers in the series.
1, 11, 121, -1, -11, -121
612 - 602 = 121
11 x 11 = 121 121 x 1 = 121
There are no two prime numbers that equal 121. 121 is not a prime number itself, but is a product of 11*11.
The simplest answer for two numbers is 1 and 121. The most popular would be 11x11 however.
121 ×1
They would both be 25.
Yes, 11*11= 121.
1 x 121, 11 x 11